1 /******************************************************************************* 2 * 3 * Module Name: dmwalk - AML disassembly tree walk 4 * 5 ******************************************************************************/ 6 7 /* 8 * Copyright (C) 2000 - 2013, Intel Corp. 9 * All rights reserved. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions, and the following disclaimer, 16 * without modification. 17 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 18 * substantially similar to the "NO WARRANTY" disclaimer below 19 * ("Disclaimer") and any redistribution must be conditioned upon 20 * including a substantially similar Disclaimer requirement for further 21 * binary redistribution. 22 * 3. Neither the names of the above-listed copyright holders nor the names 23 * of any contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * Alternatively, this software may be distributed under the terms of the 27 * GNU General Public License ("GPL") version 2 as published by the Free 28 * Software Foundation. 29 * 30 * NO WARRANTY 31 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 32 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 33 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 34 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 35 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 36 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 37 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 38 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 39 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 40 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 41 * POSSIBILITY OF SUCH DAMAGES. 42 */ 43 44 45 #include "acpi.h" 46 #include "accommon.h" 47 #include "acparser.h" 48 #include "amlcode.h" 49 #include "acdisasm.h" 50 #include "acdebug.h" 51 52 53 #ifdef ACPI_DISASSEMBLER 54 55 #define _COMPONENT ACPI_CA_DEBUGGER 56 ACPI_MODULE_NAME ("dmwalk") 57 58 59 #define DB_FULL_OP_INFO "[%4.4s] @%5.5X #%4.4X: " 60 61 /* Stub for non-compiler code */ 62 63 #ifndef ACPI_ASL_COMPILER 64 void 65 AcpiDmEmitExternals ( 66 void) 67 { 68 return; 69 } 70 #endif 71 72 /* Local prototypes */ 73 74 static ACPI_STATUS 75 AcpiDmDescendingOp ( 76 ACPI_PARSE_OBJECT *Op, 77 UINT32 Level, 78 void *Context); 79 80 static ACPI_STATUS 81 AcpiDmAscendingOp ( 82 ACPI_PARSE_OBJECT *Op, 83 UINT32 Level, 84 void *Context); 85 86 static UINT32 87 AcpiDmBlockType ( 88 ACPI_PARSE_OBJECT *Op); 89 90 91 /******************************************************************************* 92 * 93 * FUNCTION: AcpiDmDisassemble 94 * 95 * PARAMETERS: WalkState - Current state 96 * Origin - Starting object 97 * NumOpcodes - Max number of opcodes to be displayed 98 * 99 * RETURN: None 100 * 101 * DESCRIPTION: Disassemble parser object and its children. This is the 102 * main entry point of the disassembler. 103 * 104 ******************************************************************************/ 105 106 void 107 AcpiDmDisassemble ( 108 ACPI_WALK_STATE *WalkState, 109 ACPI_PARSE_OBJECT *Origin, 110 UINT32 NumOpcodes) 111 { 112 ACPI_PARSE_OBJECT *Op = Origin; 113 ACPI_OP_WALK_INFO Info; 114 115 116 if (!Op) 117 { 118 return; 119 } 120 121 Info.Flags = 0; 122 Info.Level = 0; 123 Info.Count = 0; 124 Info.WalkState = WalkState; 125 AcpiDmWalkParseTree (Op, AcpiDmDescendingOp, AcpiDmAscendingOp, &Info); 126 return; 127 } 128 129 130 /******************************************************************************* 131 * 132 * FUNCTION: AcpiDmWalkParseTree 133 * 134 * PARAMETERS: Op - Root Op object 135 * DescendingCallback - Called during tree descent 136 * AscendingCallback - Called during tree ascent 137 * Context - To be passed to the callbacks 138 * 139 * RETURN: Status from callback(s) 140 * 141 * DESCRIPTION: Walk the entire parse tree. 142 * 143 ******************************************************************************/ 144 145 void 146 AcpiDmWalkParseTree ( 147 ACPI_PARSE_OBJECT *Op, 148 ASL_WALK_CALLBACK DescendingCallback, 149 ASL_WALK_CALLBACK AscendingCallback, 150 void *Context) 151 { 152 BOOLEAN NodePreviouslyVisited; 153 ACPI_PARSE_OBJECT *StartOp = Op; 154 ACPI_STATUS Status; 155 ACPI_PARSE_OBJECT *Next; 156 ACPI_OP_WALK_INFO *Info = Context; 157 158 159 Info->Level = 0; 160 NodePreviouslyVisited = FALSE; 161 162 while (Op) 163 { 164 if (NodePreviouslyVisited) 165 { 166 if (AscendingCallback) 167 { 168 Status = AscendingCallback (Op, Info->Level, Context); 169 if (ACPI_FAILURE (Status)) 170 { 171 return; 172 } 173 } 174 } 175 else 176 { 177 /* Let the callback process the node */ 178 179 Status = DescendingCallback (Op, Info->Level, Context); 180 if (ACPI_SUCCESS (Status)) 181 { 182 /* Visit children first, once */ 183 184 Next = AcpiPsGetArg (Op, 0); 185 if (Next) 186 { 187 Info->Level++; 188 Op = Next; 189 continue; 190 } 191 } 192 else if (Status != AE_CTRL_DEPTH) 193 { 194 /* Exit immediately on any error */ 195 196 return; 197 } 198 } 199 200 /* Terminate walk at start op */ 201 202 if (Op == StartOp) 203 { 204 break; 205 } 206 207 /* No more children, re-visit this node */ 208 209 if (!NodePreviouslyVisited) 210 { 211 NodePreviouslyVisited = TRUE; 212 continue; 213 } 214 215 /* No more children, visit peers */ 216 217 if (Op->Common.Next) 218 { 219 Op = Op->Common.Next; 220 NodePreviouslyVisited = FALSE; 221 } 222 else 223 { 224 /* No peers, re-visit parent */ 225 226 if (Info->Level != 0 ) 227 { 228 Info->Level--; 229 } 230 231 Op = Op->Common.Parent; 232 NodePreviouslyVisited = TRUE; 233 } 234 } 235 236 /* If we get here, the walk completed with no errors */ 237 238 return; 239 } 240 241 242 /******************************************************************************* 243 * 244 * FUNCTION: AcpiDmBlockType 245 * 246 * PARAMETERS: Op - Object to be examined 247 * 248 * RETURN: BlockType - not a block, parens, braces, or even both. 249 * 250 * DESCRIPTION: Type of block for this op (parens or braces) 251 * 252 ******************************************************************************/ 253 254 static UINT32 255 AcpiDmBlockType ( 256 ACPI_PARSE_OBJECT *Op) 257 { 258 const ACPI_OPCODE_INFO *OpInfo; 259 260 261 if (!Op) 262 { 263 return (BLOCK_NONE); 264 } 265 266 switch (Op->Common.AmlOpcode) 267 { 268 case AML_ELSE_OP: 269 270 return (BLOCK_BRACE); 271 272 case AML_METHOD_OP: 273 case AML_DEVICE_OP: 274 case AML_SCOPE_OP: 275 case AML_PROCESSOR_OP: 276 case AML_POWER_RES_OP: 277 case AML_THERMAL_ZONE_OP: 278 case AML_IF_OP: 279 case AML_WHILE_OP: 280 case AML_FIELD_OP: 281 case AML_INDEX_FIELD_OP: 282 case AML_BANK_FIELD_OP: 283 284 return (BLOCK_PAREN | BLOCK_BRACE); 285 286 case AML_BUFFER_OP: 287 288 if (Op->Common.DisasmOpcode == ACPI_DASM_UNICODE) 289 { 290 return (BLOCK_NONE); 291 } 292 293 /*lint -fallthrough */ 294 295 case AML_PACKAGE_OP: 296 case AML_VAR_PACKAGE_OP: 297 298 return (BLOCK_PAREN | BLOCK_BRACE); 299 300 case AML_EVENT_OP: 301 302 return (BLOCK_PAREN); 303 304 default: 305 306 OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode); 307 if (OpInfo->Flags & AML_HAS_ARGS) 308 { 309 return (BLOCK_PAREN); 310 } 311 312 return (BLOCK_NONE); 313 } 314 } 315 316 317 /******************************************************************************* 318 * 319 * FUNCTION: AcpiDmListType 320 * 321 * PARAMETERS: Op - Object to be examined 322 * 323 * RETURN: ListType - has commas or not. 324 * 325 * DESCRIPTION: Type of block for this op (parens or braces) 326 * 327 ******************************************************************************/ 328 329 UINT32 330 AcpiDmListType ( 331 ACPI_PARSE_OBJECT *Op) 332 { 333 const ACPI_OPCODE_INFO *OpInfo; 334 335 336 if (!Op) 337 { 338 return (BLOCK_NONE); 339 } 340 341 switch (Op->Common.AmlOpcode) 342 { 343 344 case AML_ELSE_OP: 345 case AML_METHOD_OP: 346 case AML_DEVICE_OP: 347 case AML_SCOPE_OP: 348 case AML_POWER_RES_OP: 349 case AML_PROCESSOR_OP: 350 case AML_THERMAL_ZONE_OP: 351 case AML_IF_OP: 352 case AML_WHILE_OP: 353 case AML_FIELD_OP: 354 case AML_INDEX_FIELD_OP: 355 case AML_BANK_FIELD_OP: 356 357 return (BLOCK_NONE); 358 359 case AML_BUFFER_OP: 360 case AML_PACKAGE_OP: 361 case AML_VAR_PACKAGE_OP: 362 363 return (BLOCK_COMMA_LIST); 364 365 default: 366 367 OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode); 368 if (OpInfo->Flags & AML_HAS_ARGS) 369 { 370 return (BLOCK_COMMA_LIST); 371 } 372 373 return (BLOCK_NONE); 374 } 375 } 376 377 378 /******************************************************************************* 379 * 380 * FUNCTION: AcpiDmDescendingOp 381 * 382 * PARAMETERS: ASL_WALK_CALLBACK 383 * 384 * RETURN: Status 385 * 386 * DESCRIPTION: First visitation of a parse object during tree descent. 387 * Decode opcode name and begin parameter list(s), if any. 388 * 389 ******************************************************************************/ 390 391 static ACPI_STATUS 392 AcpiDmDescendingOp ( 393 ACPI_PARSE_OBJECT *Op, 394 UINT32 Level, 395 void *Context) 396 { 397 ACPI_OP_WALK_INFO *Info = Context; 398 const ACPI_OPCODE_INFO *OpInfo; 399 UINT32 Name; 400 ACPI_PARSE_OBJECT *NextOp; 401 402 403 if (Op->Common.DisasmFlags & ACPI_PARSEOP_IGNORE) 404 { 405 /* Ignore this op -- it was handled elsewhere */ 406 407 return (AE_CTRL_DEPTH); 408 } 409 410 /* Level 0 is at the Definition Block level */ 411 412 if (Level == 0) 413 { 414 /* In verbose mode, print the AML offset, opcode and depth count */ 415 416 if (Info->WalkState) 417 { 418 VERBOSE_PRINT ((DB_FULL_OP_INFO, 419 (Info->WalkState->MethodNode ? 420 Info->WalkState->MethodNode->Name.Ascii : " "), 421 Op->Common.AmlOffset, (UINT32) Op->Common.AmlOpcode)); 422 } 423 424 if (Op->Common.AmlOpcode == AML_SCOPE_OP) 425 { 426 /* This is the beginning of the Definition Block */ 427 428 AcpiOsPrintf ("{\n"); 429 430 /* Emit all External() declarations here */ 431 432 AcpiDmEmitExternals (); 433 return (AE_OK); 434 } 435 } 436 else if ((AcpiDmBlockType (Op->Common.Parent) & BLOCK_BRACE) && 437 (!(Op->Common.DisasmFlags & ACPI_PARSEOP_PARAMLIST)) && 438 (Op->Common.AmlOpcode != AML_INT_BYTELIST_OP)) 439 { 440 /* 441 * This is a first-level element of a term list, 442 * indent a new line 443 */ 444 switch (Op->Common.AmlOpcode) 445 { 446 case AML_NOOP_OP: 447 /* 448 * Optionally just ignore this opcode. Some tables use 449 * NoOp opcodes for "padding" out packages that the BIOS 450 * changes dynamically. This can leave hundreds or 451 * thousands of NoOp opcodes that if disassembled, 452 * cannot be compiled because they are syntactically 453 * incorrect. 454 */ 455 if (AcpiGbl_IgnoreNoopOperator) 456 { 457 Op->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; 458 return (AE_OK); 459 } 460 461 /* Fallthrough */ 462 463 default: 464 465 AcpiDmIndent (Level); 466 break; 467 } 468 469 Info->LastLevel = Level; 470 Info->Count = 0; 471 } 472 473 /* 474 * This is an inexpensive mechanism to try and keep lines from getting 475 * too long. When the limit is hit, start a new line at the previous 476 * indent plus one. A better but more expensive mechanism would be to 477 * keep track of the current column. 478 */ 479 Info->Count++; 480 if (Info->Count /* +Info->LastLevel */ > 10) 481 { 482 Info->Count = 0; 483 AcpiOsPrintf ("\n"); 484 AcpiDmIndent (Info->LastLevel + 1); 485 } 486 487 /* Print the opcode name */ 488 489 AcpiDmDisassembleOneOp (NULL, Info, Op); 490 491 if ((Op->Common.DisasmOpcode == ACPI_DASM_LNOT_PREFIX) || 492 (Op->Common.AmlOpcode == AML_INT_CONNECTION_OP)) 493 { 494 return (AE_OK); 495 } 496 497 if ((Op->Common.AmlOpcode == AML_NAME_OP) || 498 (Op->Common.AmlOpcode == AML_RETURN_OP)) 499 { 500 Info->Level--; 501 } 502 503 /* Start the opcode argument list if necessary */ 504 505 OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode); 506 507 if ((OpInfo->Flags & AML_HAS_ARGS) || 508 (Op->Common.AmlOpcode == AML_EVENT_OP)) 509 { 510 /* This opcode has an argument list */ 511 512 if (AcpiDmBlockType (Op) & BLOCK_PAREN) 513 { 514 AcpiOsPrintf (" ("); 515 } 516 517 /* If this is a named opcode, print the associated name value */ 518 519 if (OpInfo->Flags & AML_NAMED) 520 { 521 switch (Op->Common.AmlOpcode) 522 { 523 case AML_ALIAS_OP: 524 525 NextOp = AcpiPsGetDepthNext (NULL, Op); 526 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; 527 AcpiDmNamestring (NextOp->Common.Value.Name); 528 AcpiOsPrintf (", "); 529 530 /*lint -fallthrough */ 531 532 default: 533 534 Name = AcpiPsGetName (Op); 535 if (Op->Named.Path) 536 { 537 AcpiDmNamestring ((char *) Op->Named.Path); 538 } 539 else 540 { 541 AcpiDmDumpName (Name); 542 } 543 544 if (Op->Common.AmlOpcode != AML_INT_NAMEDFIELD_OP) 545 { 546 if (AcpiGbl_DbOpt_verbose) 547 { 548 (void) AcpiPsDisplayObjectPathname (NULL, Op); 549 } 550 } 551 break; 552 } 553 554 switch (Op->Common.AmlOpcode) 555 { 556 case AML_METHOD_OP: 557 558 AcpiDmMethodFlags (Op); 559 AcpiOsPrintf (")"); 560 561 /* Emit description comment for Method() with a predefined ACPI name */ 562 563 AcpiDmPredefinedDescription (Op); 564 break; 565 566 567 case AML_NAME_OP: 568 569 /* Check for _HID and related EISAID() */ 570 571 AcpiDmIsEisaId (Op); 572 AcpiOsPrintf (", "); 573 break; 574 575 576 case AML_REGION_OP: 577 578 AcpiDmRegionFlags (Op); 579 break; 580 581 582 case AML_POWER_RES_OP: 583 584 /* Mark the next two Ops as part of the parameter list */ 585 586 AcpiOsPrintf (", "); 587 NextOp = AcpiPsGetDepthNext (NULL, Op); 588 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMLIST; 589 590 NextOp = NextOp->Common.Next; 591 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMLIST; 592 return (AE_OK); 593 594 595 case AML_PROCESSOR_OP: 596 597 /* Mark the next three Ops as part of the parameter list */ 598 599 AcpiOsPrintf (", "); 600 NextOp = AcpiPsGetDepthNext (NULL, Op); 601 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMLIST; 602 603 NextOp = NextOp->Common.Next; 604 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMLIST; 605 606 NextOp = NextOp->Common.Next; 607 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMLIST; 608 return (AE_OK); 609 610 611 case AML_MUTEX_OP: 612 case AML_DATA_REGION_OP: 613 614 AcpiOsPrintf (", "); 615 return (AE_OK); 616 617 618 case AML_EVENT_OP: 619 case AML_ALIAS_OP: 620 621 return (AE_OK); 622 623 624 case AML_SCOPE_OP: 625 case AML_DEVICE_OP: 626 case AML_THERMAL_ZONE_OP: 627 628 AcpiOsPrintf (")"); 629 break; 630 631 632 default: 633 634 AcpiOsPrintf ("*** Unhandled named opcode %X\n", 635 Op->Common.AmlOpcode); 636 break; 637 } 638 } 639 640 else switch (Op->Common.AmlOpcode) 641 { 642 case AML_FIELD_OP: 643 case AML_BANK_FIELD_OP: 644 case AML_INDEX_FIELD_OP: 645 646 Info->BitOffset = 0; 647 648 /* Name of the parent OperationRegion */ 649 650 NextOp = AcpiPsGetDepthNext (NULL, Op); 651 AcpiDmNamestring (NextOp->Common.Value.Name); 652 AcpiOsPrintf (", "); 653 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; 654 655 switch (Op->Common.AmlOpcode) 656 { 657 case AML_BANK_FIELD_OP: 658 659 /* Namestring - Bank Name */ 660 661 NextOp = AcpiPsGetDepthNext (NULL, NextOp); 662 AcpiDmNamestring (NextOp->Common.Value.Name); 663 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; 664 AcpiOsPrintf (", "); 665 666 /* 667 * Bank Value. This is a TermArg in the middle of the parameter 668 * list, must handle it here. 669 * 670 * Disassemble the TermArg parse tree. ACPI_PARSEOP_PARAMLIST 671 * eliminates newline in the output. 672 */ 673 NextOp = NextOp->Common.Next; 674 675 Info->Flags = ACPI_PARSEOP_PARAMLIST; 676 AcpiDmWalkParseTree (NextOp, AcpiDmDescendingOp, 677 AcpiDmAscendingOp, Info); 678 Info->Flags = 0; 679 Info->Level = Level; 680 681 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; 682 AcpiOsPrintf (", "); 683 break; 684 685 case AML_INDEX_FIELD_OP: 686 687 /* Namestring - Data Name */ 688 689 NextOp = AcpiPsGetDepthNext (NULL, NextOp); 690 AcpiDmNamestring (NextOp->Common.Value.Name); 691 AcpiOsPrintf (", "); 692 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; 693 break; 694 695 default: 696 697 break; 698 } 699 700 AcpiDmFieldFlags (NextOp); 701 break; 702 703 case AML_BUFFER_OP: 704 705 /* The next op is the size parameter */ 706 707 NextOp = AcpiPsGetDepthNext (NULL, Op); 708 if (!NextOp) 709 { 710 /* Single-step support */ 711 712 return (AE_OK); 713 } 714 715 if (Op->Common.DisasmOpcode == ACPI_DASM_RESOURCE) 716 { 717 /* 718 * We have a resource list. Don't need to output 719 * the buffer size Op. Open up a new block 720 */ 721 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_IGNORE; 722 NextOp = NextOp->Common.Next; 723 AcpiOsPrintf (")"); 724 725 /* Emit description comment for Name() with a predefined ACPI name */ 726 727 AcpiDmPredefinedDescription (Op->Asl.Parent); 728 729 AcpiOsPrintf ("\n"); 730 AcpiDmIndent (Info->Level); 731 AcpiOsPrintf ("{\n"); 732 return (AE_OK); 733 } 734 735 /* Normal Buffer, mark size as in the parameter list */ 736 737 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMLIST; 738 return (AE_OK); 739 740 case AML_VAR_PACKAGE_OP: 741 case AML_IF_OP: 742 case AML_WHILE_OP: 743 744 /* The next op is the size or predicate parameter */ 745 746 NextOp = AcpiPsGetDepthNext (NULL, Op); 747 if (NextOp) 748 { 749 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMLIST; 750 } 751 return (AE_OK); 752 753 case AML_PACKAGE_OP: 754 755 /* The next op is the size parameter */ 756 757 NextOp = AcpiPsGetDepthNext (NULL, Op); 758 if (NextOp) 759 { 760 NextOp->Common.DisasmFlags |= ACPI_PARSEOP_PARAMLIST; 761 } 762 return (AE_OK); 763 764 case AML_MATCH_OP: 765 766 AcpiDmMatchOp (Op); 767 break; 768 769 default: 770 771 break; 772 } 773 774 if (AcpiDmBlockType (Op) & BLOCK_BRACE) 775 { 776 AcpiOsPrintf ("\n"); 777 AcpiDmIndent (Level); 778 AcpiOsPrintf ("{\n"); 779 } 780 } 781 782 return (AE_OK); 783 } 784 785 786 /******************************************************************************* 787 * 788 * FUNCTION: AcpiDmAscendingOp 789 * 790 * PARAMETERS: ASL_WALK_CALLBACK 791 * 792 * RETURN: Status 793 * 794 * DESCRIPTION: Second visitation of a parse object, during ascent of parse 795 * tree. Close out any parameter lists and complete the opcode. 796 * 797 ******************************************************************************/ 798 799 static ACPI_STATUS 800 AcpiDmAscendingOp ( 801 ACPI_PARSE_OBJECT *Op, 802 UINT32 Level, 803 void *Context) 804 { 805 ACPI_OP_WALK_INFO *Info = Context; 806 ACPI_PARSE_OBJECT *ParentOp; 807 808 809 if (Op->Common.DisasmFlags & ACPI_PARSEOP_IGNORE) 810 { 811 /* Ignore this op -- it was handled elsewhere */ 812 813 return (AE_OK); 814 } 815 816 if ((Level == 0) && (Op->Common.AmlOpcode == AML_SCOPE_OP)) 817 { 818 /* Indicates the end of the current descriptor block (table) */ 819 820 AcpiOsPrintf ("}\n\n"); 821 return (AE_OK); 822 } 823 824 switch (AcpiDmBlockType (Op)) 825 { 826 case BLOCK_PAREN: 827 828 /* Completed an op that has arguments, add closing paren */ 829 830 AcpiOsPrintf (")"); 831 832 if (Op->Common.AmlOpcode == AML_NAME_OP) 833 { 834 /* Emit description comment for Name() with a predefined ACPI name */ 835 836 AcpiDmPredefinedDescription (Op); 837 } 838 else 839 { 840 /* For Create* operators, attempt to emit resource tag description */ 841 842 AcpiDmFieldPredefinedDescription (Op); 843 } 844 845 /* Could be a nested operator, check if comma required */ 846 847 if (!AcpiDmCommaIfListMember (Op)) 848 { 849 if ((AcpiDmBlockType (Op->Common.Parent) & BLOCK_BRACE) && 850 (!(Op->Common.DisasmFlags & ACPI_PARSEOP_PARAMLIST)) && 851 (Op->Common.AmlOpcode != AML_INT_BYTELIST_OP)) 852 { 853 /* 854 * This is a first-level element of a term list 855 * start a new line 856 */ 857 if (!(Info->Flags & ACPI_PARSEOP_PARAMLIST)) 858 { 859 AcpiOsPrintf ("\n"); 860 } 861 } 862 } 863 break; 864 865 case BLOCK_BRACE: 866 case (BLOCK_BRACE | BLOCK_PAREN): 867 868 /* Completed an op that has a term list, add closing brace */ 869 870 if (Op->Common.DisasmFlags & ACPI_PARSEOP_EMPTY_TERMLIST) 871 { 872 AcpiOsPrintf ("}"); 873 } 874 else 875 { 876 AcpiDmIndent (Level); 877 AcpiOsPrintf ("}"); 878 } 879 880 AcpiDmCommaIfListMember (Op); 881 882 if (AcpiDmBlockType (Op->Common.Parent) != BLOCK_PAREN) 883 { 884 AcpiOsPrintf ("\n"); 885 if (!(Op->Common.DisasmFlags & ACPI_PARSEOP_EMPTY_TERMLIST)) 886 { 887 if ((Op->Common.AmlOpcode == AML_IF_OP) && 888 (Op->Common.Next) && 889 (Op->Common.Next->Common.AmlOpcode == AML_ELSE_OP)) 890 { 891 break; 892 } 893 894 if ((AcpiDmBlockType (Op->Common.Parent) & BLOCK_BRACE) && 895 (!Op->Common.Next)) 896 { 897 break; 898 } 899 AcpiOsPrintf ("\n"); 900 } 901 } 902 break; 903 904 case BLOCK_NONE: 905 default: 906 907 /* Could be a nested operator, check if comma required */ 908 909 if (!AcpiDmCommaIfListMember (Op)) 910 { 911 if ((AcpiDmBlockType (Op->Common.Parent) & BLOCK_BRACE) && 912 (!(Op->Common.DisasmFlags & ACPI_PARSEOP_PARAMLIST)) && 913 (Op->Common.AmlOpcode != AML_INT_BYTELIST_OP)) 914 { 915 /* 916 * This is a first-level element of a term list 917 * start a new line 918 */ 919 AcpiOsPrintf ("\n"); 920 } 921 } 922 else if (Op->Common.Parent) 923 { 924 switch (Op->Common.Parent->Common.AmlOpcode) 925 { 926 case AML_PACKAGE_OP: 927 case AML_VAR_PACKAGE_OP: 928 929 if (!(Op->Common.DisasmFlags & ACPI_PARSEOP_PARAMLIST)) 930 { 931 AcpiOsPrintf ("\n"); 932 } 933 break; 934 935 default: 936 937 break; 938 } 939 } 940 break; 941 } 942 943 if (Op->Common.DisasmFlags & ACPI_PARSEOP_PARAMLIST) 944 { 945 if ((Op->Common.Next) && 946 (Op->Common.Next->Common.DisasmFlags & ACPI_PARSEOP_PARAMLIST)) 947 { 948 return (AE_OK); 949 } 950 951 /* 952 * Just completed a parameter node for something like "Buffer (param)". 953 * Close the paren and open up the term list block with a brace 954 */ 955 if (Op->Common.Next) 956 { 957 AcpiOsPrintf (")"); 958 959 /* Emit description comment for Name() with a predefined ACPI name */ 960 961 ParentOp = Op->Common.Parent; 962 if (ParentOp) 963 { 964 ParentOp = ParentOp->Common.Parent; 965 if (ParentOp && ParentOp->Asl.AmlOpcode == AML_NAME_OP) 966 { 967 AcpiDmPredefinedDescription (ParentOp); 968 } 969 } 970 AcpiOsPrintf ("\n"); 971 AcpiDmIndent (Level - 1); 972 AcpiOsPrintf ("{\n"); 973 } 974 else 975 { 976 Op->Common.Parent->Common.DisasmFlags |= 977 ACPI_PARSEOP_EMPTY_TERMLIST; 978 AcpiOsPrintf (") {"); 979 } 980 } 981 982 if ((Op->Common.AmlOpcode == AML_NAME_OP) || 983 (Op->Common.AmlOpcode == AML_RETURN_OP)) 984 { 985 Info->Level++; 986 } 987 return (AE_OK); 988 } 989 990 991 #endif /* ACPI_DISASSEMBLER */